In a recent paper by Elson and Tran [ J. Opt. Soc. Am. A 12, 1765 ( 1995)], numerical results are given and compared with those obtained by Li [ J. Opt. Soc. Am. A 10, 2581 ( 1993)]. Some strong discrepancies appear in these comparisons, especially in TM polarization. Accurate and reliable data are given to clarify this disagreement.
© 1996 Optical Society of America
Original Manuscript: September 26, 1995
Manuscript Accepted: January 16, 1996
Published: August 1, 1996
G. Tayeb, "Dispersion in photonic media and diffraction from gratings: a different modal expansion for the R-matrix propagation technique: comment," J. Opt. Soc. Am. A 13, 1766-1767 (1996)